One Pair D2R D2S 6000K Xenon HID Bulbs Lights Lamps 35W Diamond White- single beam D2C fits both (D2R ,D2S) Diamond- White 6000K HID Bulb 35W. Xenon Gas Filled HID bulb. No Filament More light output. A 35W HID light source produced up to 3 x the lumens at the light source when compared to a 55W halogen bulbs Greater visibility. The combination of more light output and whiter color make for better visibility in most night time driving conditions Longer Life. HID lamps will last, on the average over 2 times as long as halogen bulb D2C for Both D2R and D2S Replacement Bulb for your Luxury Cars, such as Mercedes-Benz, BMW, Audi, Lexus, Infiniti, Acura....